Do not attempt to bottomout double
lip seal. Press in until seal is flush
If either dowel pin (6) or dowel hole is
with face of recess.
damaged, pin or machined casting, or
both, must be replaced. If more than
reasonable force is required to seat
dowels, cause may be poorly
Wipe off excess sealant.
deburred or dirty parts; cocking of
3. INSTALL LIP SEAL (20).
dowel in holes or improper pin-to-
a. Coat outer edge of lip seal and its recess with
Permatex Aviation Form-A-Gasket No. 3 Non-
hardening Sealant or equivalent. With metal
side of lip seal up, press it into mounting flanges
Replace all rubber and polymer seals.
side of the shaft and cover (23) with an arbor
Include all packings, pocket seals (9)
behind thrust plates (10), shaft seal
(20) and gasket seals (11).
4. INSTALL RING SEALS (7) AS APPLICABLE.
When securing pump in a vise, do not
Notch in ring seal must be visible to
grip on or near machined surfaces.
ensure notched side of seal (7) is
next to bearing (8).
1. IF BEARINGS HAVE BEEN REMOVED, DEBURR
BEARING BORES. CLEAN ALL PARTS IN A
a. If ring seals are being replaced, insert them into
SUITABLE SOLVENT AND DRY THEM WITH
bottom of drive gear bearing bore.
COMPRESSED AIR. WIPE WITH CLEAN LINT
Use an arbor press only to install
bearings. Do not hammer bearings
If plug (18) is replaced, strike new
plug with a prick punch at both ends
of screwdriver slot and around
5. INSTALL BEARINGS (8) AS APPLICABLE.
a. Replace any bearings that have been removed
2. EXAMINE PLUG (18) FOR SECURITY. REPLACE
from shaft end cover (19), port end cover (5), or
ONLY IF IT IS DAMAGED.
bearing carrier (15). Install bearings with an